Customizable Decanter Centrifuge Feed Pump For Offshore Platform

APG Screw pump for decanter centrifuge in oil drilling mud system

The centrifuge feed pump is a positive displacement pump, also called a screw pump. The APG positive displacement pump is an ideal pump for feeding to decanter centrifuge without shearing or agitating the drilling mud. The main parts are the screw shaft (rotor) and screw shaft bushing (stator). Because of the special geometry shape of the two parts, they form pressurize capacity separately. The fluids flow along with the shaft, inner flow speed is slow, capacity remains, pressure is steady, so it will not generate vortex and agitating. The shaft of the pump is made from Stainless steel, APG series pump is available for option with a complete stainless steel body.

Please check below technical specifications for your reference.

Screw pumps mainly consisted of the discharge port, the stator, the rotor, the flexible section, middle axis, suction room, seal, bearings, driveshaft, bearing body. Among these parts, the wearing parts are the rotor and stator. The screw pump wet parts can be made of stainless, steel, and high-quality rubber. According to different fluids content and property, we'll provide a certain configuration on screw pumps. For example, for the abrasive material, we kindly suggest using special rubber instead of stainless steel. As we know, the S.S can't adapt abrasive material but corrosive material. Compared to other pumps, screw pump is not easy to lead swirl. This helps much to maintain pump capacity. It is not sensitive to viscosity so it is capable to transfer material with high viscosity

Screw pump transfer drilling fluid via the screw conveyor rotation. The Center screw pole is the positive pole, the two sides screw conveyor is the negative pole. Negative poles rotate in the opposite direction from the positive pole.

Actually, when the screw axis is rotating, the lower Vroom will become large. Vroom will close against fluid sucked. The closed room will be pushed forward along the axle. Then a new suction cavity generates on the suction end. One and one closed cavity move forward, the fluid will be pressed out.

How to select a screw pump? Yes. It's depending on the centrifuge flow rate request. The screw pump APG series holding a capacity from 8m³/h-350m³/h. Besides the solids control system, a screw pump can be used in other applications, too. For the drilling mud process, the centrifuge feeding pump is a rather typical use of a screw pump. Compared to other pumps, screw pump holds shorter life or operation life considering the wearing parts. But it's a compact and high effect, many users prefer it then

Single screw pump
XG, XL series
Like Netzsch NM, N series
(1). Single screw pump
1. Horizontal installation
2. The special gear decelerated motor drive makes the structure more compact and reliable.
3. Equip with the electric or mechanical timing device can carry out the variable output.
4. Optional operating protective devices.
5. Capacity up to 500m3/h.
6. Pressure up to 2.4MPa or higher.

(2). Delivery Media
1. Different viscous liquids, especially for the liquids with high viscosity which are difficult to be pumped.
2. Different dense liquids.
3. Liquids that contain solid particles, fibers, and suspending materials.
4. Intermixtures of liquid, air, and solid.
5. Sensitive liquids that can not be churned, sheared, and compressed.
6. Corrosive liquids.

(3). Application Area
A. Environmental engineering
1. Separate oil from water and desulfurize from waste air.
2. Metering dose of flocculation and another chemical compound.
3. Delivery of all kinds of sewage.

B. Paper making industry
1. Dregs slurry and wastewater treatment.
2. Metering for chemical slurry.
3. Spreading and coloring process.
4. Preparing for the material.

C. my industry
1. Producing and preparing for the titanium white powder, kaolin, and carbonate.
2. Feeding whirl fluid body and filtrate body on the material.
3. Dosing with chemical slurry.
4. Electrolyte treatment.

D. Chemical industry and pharmaceutical industry
1. Various pasted liquids.
2. Various milky liquids.
3. Various suspending liquid.
4. Liquids that contain air or solid.
5. Liquids that can not be churned or sheared.

E. Oil industry
1. Viscous oil delivery
2. Mixed delivery of oil and air.
3. Separated oil from water and waste oil recovery system.
4. Sewage treatment.
5. Polymer delivery.

Features of APAPG centrifuge feed pump can drive by the coupler, or adjust the speed by using a variable speed motor, Triangle V-belt, gearbox, etc G series positive displacement pump with fewer accessories, compact structure, small volume, easy maintenance, rotor, and stator are wear parts of this pump, it is convenient to replace. The stator is made of elastomeric material, so it has particular advantages over other pumps to transfer the fluids With high viscosity and hard suspended particles included.

Other Centrifuge feed pump
APG Series Positive Displacement Pump is the most popular centrifuge feeding pump, but for some applications, the drilling industry also uses the horizontal centrifugal pump and submersible slurry pump to feed drilling mud to the decanter centrifuge.

For any interest or demand on the centrifuge screw pump, please feel free to contact us. You will get a free offer very soon.

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